My extensive list of skills
React
Building interactive user interfaces using modern React patterns and components.
C/C++
Developing high-performance systems and low-level firmware for embedded devices.
Python
Architecting scalable backends, data pipelines, and robust automation scripts.
KiCAD
Designing complex PCB layouts and schematic captures for modern IoT hardware.
Postgres
Optimizing relational databases for high-performance and scalable applications.
Nginx
Configuring high-performance web servers, reverse proxies, and load balancers.
Terraform
Managing infrastructure as code to automate cloud deployments and resources.
Kubernetes
Orchestrating containerized applications for automated scaling and management.
Docker
Containerizing applications to ensure consistent deployment across environments.
ESP32/ESP8266
Developing firmware for low-power IoT devices and sensor node integrations.
Golang
Building efficient, concurrent, and scalable cloud-native microservices systems.
Kafka
Implementing distributed streaming platforms for high-throughput data pipelines.
MQTT
Designing lightweight messaging protocols for reliable IoT telemetry and control.
MongoDB
Developing flexible, document-oriented database solutions for modern applications.
Building from the Edge to the Cloud
Meet Agrinode, my custom IoT telemetry hardware. As an IoT developer, I don't just write backend APIs I build the physical nodes that generate the data. By writing ESP32 firmware in C/C++ that publishes metrics over MQTT, I handle the entire hardware-to-cloud lifecycle.
What the people say about my work
"I highly recommend Joan as a standout IoT Full-Stack Developer. We worked together on AgrInsight AI, smart housing, and advanced school management systems. Her deep technical knowledge and commitment make her invaluable, and she bridges hardware and software with strong full-stack delivery."
"Joan is an exceptionally dedicated professional who brings a rare combination of technical passion and a disciplined work ethic to the table. She consistently goes above and beyond, tackles challenges proactively, and stays driven across complex technical work. Her integrity, skills, and collaboration make her a standout teammate."